Electrosurgical electrode shroud

• US 7,582,244 B2
• Filed: 04/18/2006
• Issued: 09/01/2009
• Est. Priority Date: 12/15/2000
• Status: Expired due to Term

• Current Assignee: Covidien AG (Medtronic Plc)
• Original Assignee: Covidien AG (Medtronic Plc)
• Inventors: Allen, Charles, Sartor, Joe Don
• Primary Examiner(s): Tucker; Philip C
• Assistant Examiner(s): ABRAHAM, AMJAD A
• Application Number:
  US11/405,746
• Publication Number:
  US 20060189977A1
• Time in Patent Office: 1,232 Days
• Field of Search: 264/279
• US Class Current: 264/279
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 18/1402 Probes for open surgery
• CPC Class Codes: A61B 18/1477 Needle-like probes
• CPC Class Codes: A61B 2018/00178 Electrical connectors
• CPC Class Codes: A61B 2018/00738 Depth, e.g. depth of ablation
• CPC Class Codes: A61B 2018/1425 Needle
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 2090/062 penetration depth

Abstract

An electrosurgical electrode shroud including a hollow substantially cylindrical member having a first end portion and a second end portion; the first end portion defining an opening which is configured and dimensioned to receive an electrosurgical electrode assembly therein; the second end portion defining an opening which is configured and dimensioned to receive an electrode mounting portion of an electrosurgical instrument, wherein at least the second end portion is formed of a substantially translucent material. The electrosurgical electrode shroud may further include visual or tactile indicator on the second end portion for indicating a depth of penetration of the electrosurgical instrument within the second end portion when viewed by the surgeon through the translucent material.

Claims

1. A method for molding a shroud over an electrosurgical electrode comprising:

placing an electrosurgical electrode in a mold assembly including a clamshell mold and a mandrel, the clamshell mold being dimensioned to mold a first end portion and a second end portion of the shroud, said mandrel being dimensioned at an angle in the range of about 5 to about 10 degrees to form the inner surface of the second end portion of the shroud; and

adding material to the clamshell mold to form an electrosurgical shroud.

2. The method in accordance with claim 1, further comprising preventing over-insertion of the electrosurgical electrode in the clamshell mold.

3. The method in accordance with claim 1, wherein adding material to the the clamshell mold comprises inserting the material into at least one port in the clamshell mold.

4. The method in accordance with claim 1, further comprising removing the shroud and electrosurgical electrode with at least one of a pin, a sleeve ejector, and a stripper plate.

5. The method in accordance with claim 1, wherein the material is elastomeric.

6. The method in accordance with claim 1, wherein the material is substantially translucent.

7. The method in accordance with claim 6, wherein the substantially translucent material is substantially clear.

8. The method in accordance with claim 6, wherein the substantially translucent material is tinted.

9. The method in accordance with claim 1, wherein the clamshell mold is dimensioned to mold a transition portion between said first end portion and said second end portion of the shroud.

10. The method in accordance with claim 9, wherein the clamshell mold is dimensioned to mold a transition portion having a frustoconical shape.

11. The method in accordance with claim 1, wherein the clamshell mold is dimensioned such that the inside diameter of the opening defined by the second end portion is substantially equal to an outside diameter of an electrosurgical instrument received therein.